GOOD Design Daily: Four CES Gadgets That Create Impact

For the majority of the vendors at the Consumer Electronics Show, opening tomorrow in Las Vegas, the massive convention is a chance to show off their latest zillion-dollar gadget that consumers probably don't need. But among the 3D monitors, gestural interfaces, and towers of tablets—not to mention the pleas from environmentalists speaking out against the show—we managed to find four intriguing products that can improve our well-being, from a device that helps people with hypertension monitor their blood pressure, to a charger that powers a cellphone as you walk. Take a look!